Hi,
we are sorry for the delay but we have great news:
- All the performance issues have been resolved. - The secondary thread access to UI elements have been removed. - We've added full Xcode 9 support. - We've migrated from the previous fake framework to a fully supported dynamic framework.

However, due to Apple's policy on beta toolchains we are not able to release a stable version that can be safely embedded in App Store apps, until the Xcode 9 GM is release. We do plan to release a new version early tomorrow (Tuesday 12) European time in a dedicated branch and the final release on Wednesday 13 compiled with the GM (probably released during our night tomorrow).